api/src/main/java/com/cloud/host/ControlState.java

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.host;

import com.cloud.resource.ResourceState;

public enum ControlState {
    Enabled,
    Disabled,
    Offline,
    Maintenance,
    Unknown;

    public static ControlState getControlState(Status hostStatus, ResourceState hostResourceState) {
        if (hostStatus == null || Status.Unknown.equals(hostStatus) || hostResourceState == null) {
            return ControlState.Unknown;
        } else if (hostStatus.lostConnection()) {
            return Offline;
        } else if (ResourceState.isMaintenanceState(hostResourceState)) {
            return Maintenance;
        } else if (ResourceState.Enabled.equals(hostResourceState)) {
            return Enabled;
        } else {
            return Disabled;
        }
    }
}